NDLI: Decoder architecture for array-code-based LDPC codes

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Keyhole Effects in MIMO Wireless Channels - Measurements and Theory

A continuous representation of multi-antenna fading channels and implications for capacity scaling and optimum array design

A model to calculate the capacity distribution of correlated MIMO channels and interferers

Asymptotical analysis of the outage capacity of rate-tailored BLAST

The distribution of eigenvalues of a Wishart matrix with correlation and application to MIMO capacity

MIMO capacity results for Rician fading channels

Large-system spectral efficiency of interference-limited MIMO systems

Forward link capacity with linear receivers and multiple transmit antennas

Iterative detection of generalized coded MIMO signals using a widely linear detector

Distributed space-time filtering for cooperative wireless networks

Layered turbo space-time coded MIMO-OFDM systems for time varying channels

Analytical evaluation of MIMO systems with unequal power transmission in a Rayleigh fading environment

Simplified power allocation and TX/RX structure for MIMO-DSL

A closed-form precoder for spatial multiplexing over correlated MIMO channels

Improved MIMO precoding for decentralized receivers resembling concepts from lattice reduction

Limited feedback precoding for spatial multiplexing systems

Code division multiplexing performance of minimum total-squared-correlation binary signature sets

Technique to design spreading sequences for the uplink of DS-CDMA systems in frequency selective fading channels

Jointly optimal power and signature sequence allocation for fading CDMA

Achievable information rates, and the coding-spreading tradeoff in finite-sized synchronous CDMA systems

Asymptotic spectral efficiency of LMMSE multi-user multi-signature MC-CDMA in frequency-selective Rayleigh fading

Spatial multiplex in downlink multiuser multiple-antenna wireless environments

Performance bounds for group decoding over asynchronous Gaussian multiple-access channels

Random coding in noise-free multiple access networks over finite fields

Outage analysis and optimization of a stacked orthogonal space-time architecture and near-outage codes

Diversity-embedded space-time codes

Coherent space-time codes for noncoherent channels

Constellation space invariance of orthogonal space-time block codes with application to evaluation of the exact probability of error

Combining beamforming and quasi-orthogonal space-time block coding using channel mean feedback

Nonlinear hierarchical space-time block codes

Performance evaluation of super-orthogonal space-time trellis codes using a moment generating function-based approach

Structured space-time block codes with optimal diversity-multiplexing tradeoff and minimum delay

Algebraic space-time codes with full diversity and low peak-to-mean power ratio

Space-time signal design for fading relay channels

STBCs using capacity achieving designs from cyclic division algebras

MTCM design with nonlinear hierarchical space-time block codes

On the optimum design of differential unitary space-time modulation

Constructing optimal space-time codes over various signal constellations

A general construction of space-time trellis codes for PSK signal sets

Algebraic constructions of optimal space-time trellis codes

Symbol mapping diversity design for packet retransmissions through fading channels

BER performance and spectral properties of interleaved convolutional time hopping for UWB impulse radio

Difference threshold test for M-ary signaling with coherent detection

Rectangular co-ordinate interleaved orthogonal designs

An efficient design method for vector broadcast systems with common information

Multimedia data transmission over mobile Internet using packet-loss punctured (PaLoP) codes

Throughput bound of CDMA unslotted ALOHA with hybrid type II ARQ using rate compatible punctured turbo codes

Diversity in relaying protocols with amplify and forward

Near Shannon limit quasi-cyclic low-density parity-check codes

High-rate LDPC codes from unital designs

Results on non-uniform error correction using low-density parity-check codes

Decoder architecture for array-code-based LDPC codes

A novel stopping criterion for turbo codes based on the average a posteriori entropy

On the design of variable-rate optimal convolutional encoders for turbo codes

Rate-compatible punctured serial concatenated convolutional codes

Generalized EXIT chart and BER analysis of finite-length turbo codes

Space-time adaptive reduced-rank multistage receiver for asynchronous CDMA

Block ordered JBSTBC scheme in highly correlated MIMO channels

Multiple-input multiple-output least-squares constant modulus algorithms

Efficient near-ML detection for MIMO channels: the sphere-projection algorithm

Blind maximum-likelihood decoding for orthogonal space-time block codes: a semidefinite relaxation approach

Improving MIMO detection by L-value analysis and adaptive threshold-based cancellation

Error performance of MIMO systems in frequency selective Rayleigh fading channels

Design of optimal precoders for MIMO channels

A square distance-based byte-erasure method for reduced-delay protection of DSL systems from non-stationary interference

Low-complexity lattice-based low-PAR transmission for DSL channels

SVD tracking algorithm for zero padded block transmission over fading channels

Digital timing recovery for communication systems

Noise analysis of DMT

Comparison of QAM-VDSL and DMT-VDSL in an impulse noise environment

Minimum intersymbol interference methods for time domain equalizer design

A low-complexity blind QAM receiver

Array beamforming for long code CDMA under carrier drift

Broadband beamforming for joint interference cancellation and low-complexity turbo equalization

Reduction of intracell and intercell interference for array MC-DS-CDMA

Least squares support vector machines for direction of arrival estimation with error control and validation

Doppler frequency estimation for channel sounding using switched multiple-element transmit and receive antennas

Performance of UWB multiple access impulse radio systems in multipath environment with antenna array

A new inverse problem based approach for azimuthal DOA estimation

Phase-sweep transmit diversity (PSTD) for shared data channels: a critical analysis

Estimation of redundancy in compressed image and video data for joint source- channel decoding

ESPRIT-like error localization algorithm for a class of real number codes

Timing acquisition for wavelet-based multirate transmissions

A-posteriori probability decoding of variable-length codes using a three-dimensional trellis representation

On trellis-based truncated-memory detection

A 40 bps speech coding scheme

Improved buffer control of Fano decoders using channel memory

A novel timing acquisition technique for perpendicular magnetic recording channels

Analysis of linear turbo equalizer via EXIT chart

K-harmonic means clustering based blind equalization in hostile environments

New receiver for joint blind equalization and carrier phase recovery of QAM signals

General structure of symbol-rate decision-directed timing error detectors

Reduced complexity MMSE detection for BLAST architectures

Time-varying FIR decision feedback equalization of doubly-selective channels

Joint velocity estimation and symbol detection in non-stationary fading channels by particle filtering

A novel adaptive phase noise compensation scheme for communication receivers

ML estimation of timing and frequency offset using multiple OFDM symbols in OFDM systems

Low-complexity receiver for OFDM in doubly-selective channels

OFDM transmission for ISI channels using variable-length pilot symbols and pre-FFT equalizer with enhanced MRC diversity reception

Subspace-MMSE blind channel estimation for multiuser OFDM with receiver diversity

A new symbol time estimator for orthogonal frequency division multiplexing systems

Power loading for CP-OFDM over frequency-selective fading channels

Reception of coded OFDM signals in broad-band fading environments with strong cochannel interference

Improved joint carrier and sampling frequency offset estimation scheme for OFDM systems

Blind maximum-likelihood equalization of CDMA signals via the EMV algorithm

DF-DD for multi-chip differentially encoded DS-CDMA

Power techniques for blind adaptive channel estimation in CDMA systems

A new method to reduce the complexity of joint detection algorithm

Initial synchronization of W-CDMA systems using a power-scaled detector with antenna diversity in frequency-selective Rayleigh fading channels

Space-time coding for single-carrier block-spread CDMA cellular downlink

On an efficient implementation of the multistage Wiener filter through Householder reflections for DS-CDMA interference suppression

Turbo decoder for high-speed application in wideband-code division multiple access system

Space frequency block codes and code division multiplexing in OFDM systems

Joint compensation of IQ imbalance and frequency offset in OFDM systems

A new method for simultaneous fine time synchronization and frequency offset estimation in OFDM with simple hardware

A low-complexity peak-to-average power ratio reduction technique for OFDM systems

A pseudo random postfix OFDM modulator and inherent channel estimation techniques

Minimizing the peak-to-average power ratio of OFDM signals via convex optimization

Peak-to-average power ratio reduction of an OFDM signal using guided scrambling coding

Data-aided maximum likelihood frequency synchronization for OFDM systems

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Decoder architecture for array-code-based LDPC codes

Content Provider	IEEE Xplore Digital Library
Author	Olcer, S.
Copyright Year	2003
Description	Author affiliation: IBM Zurich Res. Lab., Ruschlikon, Switzerland (Olcer, S.)
Abstract	We describe a decoder architecture intended for decoding array-code-based low-density parity-check (LDPC) codes using the sum-product algorithm (SPA). The advantages of the proposed architecture, as compared to the fully parallel implementation of the SPA, are: reduced memory size, avoidance of complex signal interconnect patterns, and ease of programmability to accommodate various code parameters. These advantages are derived from exploiting the well-defined structure of the parity-check matrix of array-code based LDPC codes. Sum-product decoding with modified message-passing schedules are proposed to simplify the decoder implementation further.
Starting Page	2046
Ending Page	2050
File Size	557092
Page Count	5
File Format	PDF
ISBN	0780379748
DOI	10.1109/GLOCOM.2003.1258596
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-12-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Parity check codes Iterative decoding AWGN Sum product algorithm Processor scheduling Laboratories Parallel architectures Concurrent computing Computer architecture Additive white noise
Content Type	Text
Resource Type	Article

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